Of course not, these things are basically deceptive, all bragging, and have no effect on the book. I've been cheated n times. I lost weight by eating diet food. After eating for two and a half months, I lost 25 pounds and my waist was 23 centimeters smaller. The effect is really good. Moreover, it is a kind of food and has no medicinal ingredients, so it does no harm to my body. Among these slimming products I have used, this one is the best.